Error code

Mitsubishi Electric PURY code 4230

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Meaning

Heatsink overheat protection (Detail code 125): When the heat sink temperature (THHS) remains at or above TOH is detected. models TOH INV35Y, 36Y 100°C INV37YC 94°C | DCL temperature fault (Detail code 126)(outdoor unit): When DCL temperature that equals or exceeds 150˚C is detected (applicable to INV37YC only)

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Possible causes

(1) Fan board failure (2) THHS failure 1) (3) Outdoor unit LEV9 malfunction (4) Low-pressure sensor fault (1) FAN board fault (2) Outdoor unit fan failure (3) Air passage blockage (4) THHS failure (1) Contact failure (2) DCL temperature sensor fault (3) INV board failure (1) Error code definition Overload protection

Solution

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